CN103017686A - Method for adjusting perpendicularity of primary mirror optical axis and horizontal axis by using laser tracker - Google Patents
Method for adjusting perpendicularity of primary mirror optical axis and horizontal axis by using laser tracker Download PDFInfo
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Abstract
A method for adjusting the verticality of a primary mirror optical axis and a horizontal axis by utilizing a laser tracker belongs to the technical field of optical adjustment, is used for adjusting the verticality of the primary mirror optical axis and the horizontal axis of photoelectric equipment, and comprises the following steps: (1) erecting a laser tracker; (2) fixing two target balls of a laser tracker at different positions of a horizontal shaft; (3) rotating the horizontal shaft to drive the target ball, and calibrating the horizontal shaft by using a laser tracker; (4) moving a target ball on the primary mirror, and calibrating the optical axis of the primary mirror by using a laser tracker; (5) and calculating the included angle between the optical axis of the primary mirror and the horizontal axis, and adjusting the inclination of the primary mirror to ensure that the optical axis of the primary mirror is perpendicular to the horizontal axis. The method solves the problems of complex tooling, complex operation procedures and large reference error in the prior art, and is simple to operate, safe and efficient.
Description
Technical field
The invention belongs to optics and debug the field, relate to a kind of primary mirror optical axis of optoelectronic device and method of Horizontal-shaft vertical adjusted, particularly a kind of primary mirror optical axis of laser tracker adjustment optoelectronic device and method of Horizontal-shaft vertical utilized.
Background technology
Large photoelectric equipment is made of the imaging system of primary mirror, secondary mirror, the 3rd mirror and back usually, for high precision angle-measuring, needs sighting of correcting optical system poor.When optical system intrinsic sight poorly when larger, if adopt software to eliminate to sight poor, then can introduce larger residual error, affect the picture element of measuring system.Sight when poor larger because optical system is intrinsic, instrument is in different angular altitude position motions, the motion track of picture point on image planes is a circle, when the visual field of imaging system is larger, then the image of image plane center might be the outer photoimaging of axle, the image at corresponding image planes edge just might exceed the visual field of optical design, at this moment can not guarantee the image quality of system.Intrinsic sight difference and can reduce by adjusting the 3rd mirror, if but the primary mirror optical axis not with Horizontal-shaft vertical, the method also can't solve outer this problem of photoimaging of relative primary and secondary mirror system axle, so all can take certain measure to guarantee primary mirror optical axis and Horizontal-shaft vertical in telescopical optical alignment process.
The technical method of existing adjustment primary mirror optical axis and Horizontal-shaft vertical (such as Fig. 3, Fig. 4) can be summarized as follows: 1. set up the transverse axis benchmark.At the transverse axis two ends crosshair is installed, it is coaxial with transverse axis to adjust crosshair.Adjust micrometer telescope 1, its optical axis is overlapped with two crosshairs, the optical axis of micrometer this moment telescope 1 has just been demarcated transverse axis.2. the surface there is the optics cube of cross groove to be installed on the microscope base of the 3rd mirror, adjusts the optics cube, make the cubical cross groove of optics coaxial with micrometer telescope 1.3. mounting center hole crosshair on primary mirror center pit axis, the line of this center of reticule and primary mirror image of spherical center is the optical axis direction of primary mirror, adjust micrometer telescope 2 primary mirror center pit crosshair, primary mirror image of spherical center are positioned on its optical axis, survey the optical axis of telescope 2 and just demarcated the primary mirror optical axis this moment.4. take the optics cube as benchmark, can measure the spatial relation of primary mirror optical axis and transverse axis, and adjust on this basis (" adjustment of 2.16 meters astronomical telescope optical systems ", Li Depei, optical instrument, 23 volumes, 2 phase 30-36 page or leaf, calendar year 2001).This method has following shortcoming: 1. it is complicated and can not be general to different optoelectronic devices to debug frock; 2. operational sequence is loaded down with trivial details, and efficient is low; 3. primary mirror mostly is parabolic, rather than sphere, paraboloidal each endless belt centre of sphere and primary mirror optical axis non co axial, and the primary mirror optical axis fiducial error of therefore setting up is larger; 4. benchmark repeatedly transmits, and precision reduces; 5. to debug Accuracy large to whole for optics cube machining precision.
The present invention patented claim proposed a kind of that under same benchmark, measure, simple, safe, adjust the primary mirror optical axis of optoelectronic device and the method for Horizontal-shaft vertical efficiently.
Summary of the invention
The problem that exists in order to solve prior art the purpose of this invention is to provide a kind of primary mirror optical axis of laser tracker adjustment optoelectronic device and method of Horizontal-shaft vertical utilized.
In order to reach described purpose, the invention provides a kind of primary mirror optical axis of laser tracker adjustment optoelectronic device and method of Horizontal-shaft vertical utilized, the technical scheme of dealing with problems is finished by following steps:
Step S1: set up laser tracker;
Step S2: the diverse location that two target balls of laser tracker is fixed on transverse axis;
Step S3: rotation transverse axis band moving-target ball, utilize laser tracker to demarcate transverse axis;
Step S4: running target ball on primary mirror, utilize laser tracker to demarcate the primary mirror optical axis;
Step S5: calculate primary mirror optical axis and transverse axis angle, adjust primary mirror and tilt, make both vertical.
Principle of the present invention is: 1. two target balls that are fixed on diverse location on the transverse axis are during along with the horizontal rotational shaft certain angle, the movement locus of target ball is one section circular arc, and the center of circle of circular arc is exactly a point on the transverse axis, and the line in two target ball circular motion track centers of circle is exactly transverse axis.Utilize the three-dimensional coordinate measurement characteristics of laser tracker, can with the spatial coordinates calculation in two target ball circular motion track centers of circle out, can calculate a space line, i.e. transverse axis axis by these two spatial point coordinates.2. the target ball is mobile at primary mirror, utilizes laser tracker to measure its mobile space track, reflects the geometric properties of primary mirror, can simulate the primary mirror optical axis.3. carry out the vertical adjustment of primary mirror optical axis and transverse axis according to the angle of two above-mentioned straight lines.
Beneficial effect of the present invention:
1. the method for utilizing laser tracker to adjust primary mirror optical axis and Horizontal-shaft vertical disclosed in this invention, definite mode of its transverse axis is to utilize laser tracker to measure two target revolution of basketball tracks, overcome the problem that needs to design, process a large amount of frocks in the prior art, avoid setting up the complicated procedures of forming of transverse axis benchmark, improved work efficiency and precision.
2. the method for utilizing laser tracker to adjust primary mirror optical axis and Horizontal-shaft vertical disclosed in this invention, definite mode of its primary mirror optical axis is that the target ball is mobile at primary mirror, utilize laser tracker to measure its mobile space track, the geometric properties that reflects primary mirror, can simulate the primary mirror optical axis, the method is simple to operate, has avoided installing the cumbersome procedure of primary mirror center pit crosshair and searching primary mirror image of spherical center, has improved work efficiency and precision.
Description of drawings
Fig. 1 utilizes laser tracker to adjust the method flow diagram of primary mirror optical axis and Horizontal-shaft vertical among the present invention;
Fig. 2 utilizes laser tracker to adjust the method synoptic diagram of primary mirror optical axis and Horizontal-shaft vertical among the present invention;
Fig. 3 is the method synoptic diagram that prior art (" adjustment of 2.16 meters astronomical telescope optical systems ", Li Depei, optical instrument, 23 volumes, 2 phase 30-36 page or leaf, calendar year 2001) is adjusted primary mirror optical axis and Horizontal-shaft vertical;
Fig. 4 is the optics cube synoptic diagram that prior art adopts.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
A kind of method of utilizing laser tracker to adjust primary mirror optical axis and Horizontal-shaft vertical, as shown in Figure 1 and Figure 2, the method is finished by following steps:
(1) sets up laser tracker.Laser tracker will be erected at and can measure simultaneously on the position of transverse axis and primary mirror, and guarantees that laser tracker is firmly motionless, can not rotate along with transverse axis.
(2) two of the fixed laser tracker target balls are at the diverse location of transverse axis, and two spindle nose places of transverse axis are the most suitable, namely are fit to the fixed target ball, also are fit to observation target ball.
(3) rotation transverse axis band moving-target ball utilizes laser tracker to calibrate transverse axis by two target balls of match along with the center of circle of horizontal rotational shaft institute paddling arc track.The rotation transverse axis, two target balls that are fixed on the transverse axis diverse location are during along with the horizontal rotational shaft certain angle, the movement locus of target ball is one section circular arc, and the center of circle of circular arc is exactly a point on the transverse axis, and the line in two target ball circular motion track centers of circle is exactly transverse axis.Utilize the three-dimensional coordinate measurement characteristics of laser tracker and the programmed algorithm that carries with the spatial coordinates calculation in two target ball circular motion track centers of circle out, can calculate again by the program that laser tracker carries space line, i.e. a transverse axis by these two spatial point coordinates.
(4) running target ball on primary mirror utilizes laser tracker to demarcate the primary mirror optical axis.The target ball is mobile at primary mirror, utilizes laser tracker to measure its motion track locus, and the program that carries by laser tracker simulates the space geometry curve of primary mirror, can obtain the primary mirror optical axis.
(5) two centerline fits that calibrated by step S3, step S4 under the same coordinate system, the program that carries by laser tracker calculates primary mirror optical axis and transverse axis angle, adjust the primary mirror inclination according to the corner dimension of measuring and direction, make primary mirror optical axis and Horizontal-shaft vertical.
Described in the present embodiment in demarcating the process of transverse axis, the anglec of rotation of transverse axis should should be large as far as possible under the condition that condition is allowed.According to the laser tracker characteristic, the arc length of target ball motion track circular arc is longer, and near complete circle, the circular arc center of circle precision that then simulates by laser tracker is just higher, and then the stated accuracy of transverse axis is also just higher.
Described in the present embodiment in the process of demarcating the primary mirror optical axis, the target ball should should be large as far as possible under the condition that condition is allowed in moving range on the primary mirror, gathers that count should be many as far as possible.According to the laser tracker characteristic, target ball moving range is larger, and collection is counted more, more can reflect the space geometry feature of primary mirror, and the primary mirror space curve precision that then simulates by laser tracker is just higher, and then the stated accuracy of primary mirror optical axis is also just higher.
The non-elaborated part of the present invention belongs to techniques well known.
Those of ordinary skill in the art will be appreciated that, above embodiment illustrates the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, the above embodiment is changed, and modification all will drop in the scope of claims of the present invention.
Claims (6)
1. method of utilizing laser tracker to adjust primary mirror optical axis and Horizontal-shaft vertical is characterized in that performing step is as follows:
Step S1: set up laser tracker;
Step S2: the diverse location that two target balls of laser tracker is fixed on transverse axis;
Step S3: rotation transverse axis band moving-target ball, utilize laser tracker to demarcate transverse axis;
Step S4: running target ball on primary mirror, utilize laser tracker to demarcate the primary mirror optical axis;
Step S5: calculate primary mirror optical axis and transverse axis angle, adjust primary mirror and tilt, make primary mirror optical axis and Horizontal-shaft vertical.
2. a kind of method of utilizing laser tracker to adjust primary mirror optical axis and Horizontal-shaft vertical according to claim 1, it is characterized in that: among the described step S1, laser tracker will be erected at and can measure simultaneously on the position of transverse axis and primary mirror, and guarantee that laser tracker is firmly motionless, can not rotate along with transverse axis.
3. a kind of method of utilizing laser tracker to adjust primary mirror optical axis and Horizontal-shaft vertical according to claim 1, it is characterized in that: among the described step S2, two target balls of laser tracker are separately fixed on two spindle noses of transverse axis.
4. a kind of method of utilizing laser tracker to adjust primary mirror optical axis and Horizontal-shaft vertical according to claim 1, it is characterized in that: among the described step S3, laser tracker is along with the straight line that the center of circle of horizontal rotational shaft paddling arc track consists of calibrates transverse axis by two target balls of match.
5. a kind of method of utilizing laser tracker to adjust primary mirror optical axis and Horizontal-shaft vertical according to claim 1, it is characterized in that: among the described step S4, the target ball is mobile at primary mirror, utilize laser tracker to measure target spherical space motion track, simulate the space geometry curve of primary mirror, can obtain the primary mirror optical axis.
6. a kind of method of utilizing laser tracker to adjust primary mirror optical axis and Horizontal-shaft vertical according to claim 1, it is characterized in that: among the described step S5, two centerline fits that calibrated by step S3, step S4 under the same coordinate system, calculate primary mirror optical axis and transverse axis angle, adjust the primary mirror inclination according to the corner dimension of measuring and direction, make primary mirror optical axis and Horizontal-shaft vertical.
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Cited By (15)
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CN103412391A (en) * | 2013-08-14 | 2013-11-27 | 中国科学院光电技术研究所 | Method for realizing through-axis centering of optical system based on laser tracker |
CN103884279A (en) * | 2014-03-07 | 2014-06-25 | 中国科学院光电研究院 | Method for detecting perpendicularity of cross shaft and vertical shaft of laser tracker |
CN104596420A (en) * | 2015-01-26 | 2015-05-06 | 北京卫星环境工程研究所 | Accurate measurement method for measuring benchmark cubic mirror central point position with laser tracker |
CN105108186A (en) * | 2015-06-25 | 2015-12-02 | 中国科学院西安光学精密机械研究所 | Error separation method of lens based on centering processing |
CN105571525A (en) * | 2015-12-17 | 2016-05-11 | 中国科学院国家天文台南京天文光学技术研究所 | Quantified detection and adjusting method and device for mutual positions of large-scale worm-gear pair |
CN105737734A (en) * | 2016-02-23 | 2016-07-06 | 北京工业大学 | Laser tacking measurement system taking standard ball as reflecting device |
CN106338261A (en) * | 2016-09-13 | 2017-01-18 | 湖北航天技术研究院总体设计所 | Angle deviation calibration method between two interferometer emergence plane wave light beams |
CN106643488A (en) * | 2016-11-07 | 2017-05-10 | 上海精密计量测试研究所 | Infrared CCD camera virtual optical axis calibration method |
CN106671103A (en) * | 2017-01-05 | 2017-05-17 | 北京航空航天大学 | Control method and system for milling robot |
CN106898854A (en) * | 2017-02-27 | 2017-06-27 | 合肥聚能电物理高技术开发有限公司 | The installation calibrating frock and its installation calibrating technique of a kind of High-precision Microwave transmission line |
CN108489401A (en) * | 2018-05-23 | 2018-09-04 | 上海市计量测试技术研究院 | Split type calibration target, calibrating installation and its calibration method with the target |
CN109297680A (en) * | 2018-08-14 | 2019-02-01 | 深圳奥比中光科技有限公司 | The detection method and device of light shaft offset error amount |
CN113714334A (en) * | 2021-08-17 | 2021-11-30 | 山东磐金钢管制造有限公司 | Method for calibrating center line of straightening machine based on laser tracker |
CN114035313A (en) * | 2021-11-18 | 2022-02-11 | 中国科学院长春光学精密机械与物理研究所 | Sub-mirror correction device for sparse aperture telescope and correction method thereof |
CN114739327A (en) * | 2022-03-24 | 2022-07-12 | 中国科学院光电技术研究所 | Method for detecting coplanarity of eight spliced mirrors |
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CN103884279A (en) * | 2014-03-07 | 2014-06-25 | 中国科学院光电研究院 | Method for detecting perpendicularity of cross shaft and vertical shaft of laser tracker |
CN103884279B (en) * | 2014-03-07 | 2019-08-20 | 中国科学院光电研究院 | A kind of laser tracker horizontal axis and vertical pivot measuring for verticality method |
CN104596420A (en) * | 2015-01-26 | 2015-05-06 | 北京卫星环境工程研究所 | Accurate measurement method for measuring benchmark cubic mirror central point position with laser tracker |
CN104596420B (en) * | 2015-01-26 | 2017-06-16 | 北京卫星环境工程研究所 | The accurate measurement method of laser tracker measuring basis prism square center position |
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CN105571525B (en) * | 2015-12-17 | 2017-11-28 | 中国科学院国家天文台南京天文光学技术研究所 | Quantization detection, method of adjustment and its equipment of large-scale worm couple mutual alignment |
CN105571525A (en) * | 2015-12-17 | 2016-05-11 | 中国科学院国家天文台南京天文光学技术研究所 | Quantified detection and adjusting method and device for mutual positions of large-scale worm-gear pair |
CN105737734A (en) * | 2016-02-23 | 2016-07-06 | 北京工业大学 | Laser tacking measurement system taking standard ball as reflecting device |
CN105737734B (en) * | 2016-02-23 | 2018-08-07 | 北京工业大学 | It is a kind of using standard ball as the laser tracking measurement system of reflection unit |
CN106338261A (en) * | 2016-09-13 | 2017-01-18 | 湖北航天技术研究院总体设计所 | Angle deviation calibration method between two interferometer emergence plane wave light beams |
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CN106643488B (en) * | 2016-11-07 | 2019-12-17 | 上海精密计量测试研究所 | infrared CCD camera virtual optical axis calibration method |
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CN106898854B (en) * | 2017-02-27 | 2019-01-25 | 合肥聚能电物理高技术开发有限公司 | A kind of the installation calibrating tooling and its installation calibrating technique of High-precision Microwave transmission line |
CN106898854A (en) * | 2017-02-27 | 2017-06-27 | 合肥聚能电物理高技术开发有限公司 | The installation calibrating frock and its installation calibrating technique of a kind of High-precision Microwave transmission line |
CN108489401A (en) * | 2018-05-23 | 2018-09-04 | 上海市计量测试技术研究院 | Split type calibration target, calibrating installation and its calibration method with the target |
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CN109297680A (en) * | 2018-08-14 | 2019-02-01 | 深圳奥比中光科技有限公司 | The detection method and device of light shaft offset error amount |
CN113714334A (en) * | 2021-08-17 | 2021-11-30 | 山东磐金钢管制造有限公司 | Method for calibrating center line of straightening machine based on laser tracker |
CN114035313A (en) * | 2021-11-18 | 2022-02-11 | 中国科学院长春光学精密机械与物理研究所 | Sub-mirror correction device for sparse aperture telescope and correction method thereof |
CN114739327A (en) * | 2022-03-24 | 2022-07-12 | 中国科学院光电技术研究所 | Method for detecting coplanarity of eight spliced mirrors |
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Application publication date: 20130403 |